spdl.io.decode_packets_nvdec

decode_packets_nvdec(packets: VideoPackets | ImagePackets | list[ImagePackets], *, device_config: CUDAConfig | None = None, **kwargs) → CUDABuffer[source]

[Experimental] Decode packets with NVDEC.

Warning

This API is exmperimental. The performance is not probed, and the specification might change.

Note

Unlike FFmpeg-based decoding, nvJPEG returns GPU buffer directly.

Note

For image, only baseline (non-progressive) JPEG formats are supported.

Parameters:

  • packets – Packets object.

  • device_config – The device to use for decoding. See spdl.io.cuda_config().

  • crop_left (int) – Optional: Crop the given number of pixels from each side.

  • crop_top (int) – Optional: Crop the given number of pixels from each side.

  • crop_right (int) – Optional: Crop the given number of pixels from each side.

  • crop_bottom (int) – Optional: Crop the given number of pixels from each side.

  • width (int) – Optional: Resize the frame. Resizing is done after cropping.

  • height (int) – Optional: Resize the frame. Resizing is done after cropping.

  • pix_fmt (str or None) – Optional: Change the format of the pixel. Supported value is "rgba". Default: "rgba".

Returns:

A CUDABuffer object.